Model ww.tc John Harrison - in honor of the engineer and creator of the "H-4" watch John Harrison. The chronometer has a round case in 18 ct white gold. The enamel dial shows the travel route from Portsmouth English to Port Royal (Jamaica) and back, which was undertaken by John Harrison's son to test the reliability of the 'H-4' watches. The circulation of the series is 50 copies.
The model is equipped with a Girard-Perregaux 033G0 manufactory automatic movement on 26 stones, with a balance frequency of 28,800 vibrations per hour and a power reserve of 46 hours, with functions for displaying hours, minutes and time in 24 time zones. There is also an indicator of day and night.
